If in doubt, don't. There's probably a reason its only $5 and at a PetSmart. I don't know anyone who suggests this bulb, and most of us prefer the linear tube type UVB bulbs anyway. Coil style bulbs don't light as much of the cage...they create one bright area and the rest of the habitat doesn't get exposure...so your cham won't either unless it happens to be in that one bright spot.